Transaction not yet indexed

MugW7CPE7se3TVxSWnTsM93PktzM4cG266eLbFz3n6WJGHsKc5Nef8pRU2WQvxSq6p1s74fe5HgwKTRFZkJs9Pi

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.